Mainspring-winder



(No Model.) Y

A. F. ROBBINS.

MAINSPRING WINDER. f Y

Patented Se ./zl-\.

BJ Afforne y UNITED STATES PATENT OFFICE.

ALBERT F. BOBBINS, OF ORANGE, MASSACHUSETTS.

MAlNsPRlNe-WINDER.

.Grammont-ron forming part of Letters Patent 1416.325973,aatea'septmber 8,1895.`

d Application tiled January 26, 1885. (No model.) d

.To all whom t may concern Be it known that I, ALBERT F. RoBBINs, a' citizen of the United States, residing at Orange, in the county of Franklin and State of Massachusetts, have invented a new and useful Improvenient in Mainspring-Winders, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to a mainspring-Winder for Watches,- and it has for its object to provide a device of this character whereby Watchsprings of different sizes may be accommodated by constructing the Winder to receive heads, or barrels of different sizes.

A further object of the invention is to provide a device of this character which shall be cheap and simple in its construction, effective in its operation, and one that will be strong and durable.

In the drawings, Figure lis a side elevation of a watch mainspringlwinder constructed in accordance with myinvention. Fig. 2 is a lon gitudinal vertical section of the same, and Fig. 3 is a detail View of parts detached.

In the accompanying drawings, in which like letters of reference indicate corresponding partsin all the igures,A represents a support ing-frame, consisting of the longitudinally-disposed base having at its ends upwardly-extending brackets b b, provided With holes or openings to receive a shaft, B. The said shaft B is somewhat longer than the frame and extends beyond the same at each end. On one end of the said shaft B is rigidly mounted a crankhandle, C, said end upon which the crankhandle is mounted being reduced, as shown in Fig. 2. The other end ofthe shaft B is provided With a countersink, c, and an upwardlyextending pin, d, which is adapted to enter a slot in the inner end of the mainspring D when the same is to be wound.

E represents the barrel,which has a central opening and an inwardlyextending sleeve,F, the diameter of the openin g or passage of Which is the same as that of theAbarrel E. This sleeve F iits in the hole or opening in the bracket b, the barrel being located outside of said bracket. The barrel and its sleeve are held against movement in the opening of the bracket b by means of a set-screw, e, Which is located in an opening, f, preferably on the under side of the frame, as shown.

the shaft B and within the sleeve F, its end extending through said sleeve into the barrel E, and said end extending into the barrel is reduced,and tted upon said reduced end is a disk, H, having a nib or lug, g, which 1s G represents a sleeve, which is mounted upon adapted to fit a notch in the barrel E. The

inner end of the sleeve G is provided Wit-h an annular flange, h, and upon the shaft B is an adjustable collar. H,Which is adapted to limit the inward movement of thesleeve G further than to allow the disk on the end of the same to bear against the inner end of the barrel.

The operation is as follows: The pin d is engaged with the-slot in the inner end of the mainspring. The crank-handle is then turned until the catch I on the other end of the mainspring engages the nib or lug of the disk H. This is effected by coiling the spring D tightly upon the shaft B, and when it has been Wound to the proper tightness the pin or catch I engages the nib or lugg,and the spring,Witl 1`the exception of the portion containing thepin or lcatch I, will be coiled in the barrel of the Winder. The barrel ofthe Watch is then placed over the barrel E of the Winder, so that the small hole of the barrel of the watch fastens on the pin or catch I. The shaft B is then turned one hal f-revolution and moved forward,which moves the disk H, and with it the spring. Then turn the shaft backward until the spring eX- pands in the barrel of the Watch, and s aid barrel may then be removed from the Winder.

The device above described is simple in its construction, readily and easily operated,may be manufactured and supplied at a slight cost,

land is strong and durable.

Having fully described my invention, What I claim as new, and desire to secure by Letters Patent, is-

l. In a mainspring-Winder, the combination, with a supporting-frame having a shaft journaled therein, of a removable barrel having a notch and a disk having a nib to engage said notch, said disk being adapted to be moved to force the mainspring from the barrel, as set forth.

2. In a mainspring-Winder, the combination, with a supporting-frame having a shaft journaled therein, said shaft having a countersunk end and a pin, as shown, of a removable barrel and a disk adapted to be moved to force ICO the spring from said barrel, substantially as set forth.

3. In a mainSpring-Winder,the combination7 with a supporting-frame having a shaft journaled therein, said shaft having a eountersunk end and a pin, as shown, of a removable barrel having a notch and a disk having a nib to t the same7 substantially as set forth.

with a supporting-frame having a shaft journaled therein7 said shaft having a oountersunk end and a pin7 as shown, of a removable ban rel having a notch and an integral sleeve, a sleeve fitting wit-hin the same, a disk on the end of said last-mentioned sleeve, which is also provided at its other end with a ange, said disk 'having a nib, and an adjustable collar on the shaft, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto aiiixed my signature in presence of two Witnesses.

ALBERT F. ROBBINS.

Vitnesses:

J. H. HAGKELTON, YV. B. ANDREWS. 

